00185: combatsc, combatscj, combatsct: the text "Player 1 (Nick)" or "CPU (Joe)" disappear.

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
00185	Graphics	Minor	Have not tried	Jan 26, 2008, 04:26	Nov 5, 2014, 16:09

Tester	RansAckeR	View Status	Public	Platform
Assigned To		Resolution	Open	OS
Status [?]	Confirmed			Driver	konami/combatsc.cpp
Version	0.102u1	Fixed in Version		Build
		Fixed in Git Commit		Github Pull Request #

Summary	00185: combatsc, combatscj, combatsct: the text "Player 1 (Nick)" or "CPU (Joe)" disappear.
Description	When beginning or ending an excercise, most of the time the last characters of the text "Player 1 (Nick)" or "CPU (Joe)" disappear.
Steps To Reproduce
Additional Information
Github Commit

Flags
Regression Version
Affected Sets / Systems	combatsc, combatscj, combatsct

Attached Files

No.07377 Kale Developer Apr 13, 2011, 21:27	Text is drawn via sprites, a note on the source states that ... - in combatsc (and more generally the 007121) the number of sprites can be increased from 0x40 to 0x80. There is a hack in konamiic.c to handle that, but it is wrong. If you don't pass the Iron Man stage, a few sprites are left dangling on the screen.(*not a bug, 64 sprites are the maximum) That note is however wrong, since that generally a sprite limit is supposed to be per-line. I believe that this bug is too damn obvious (it happens on the very first level!) to not do any counter measure during developing of the game. Finally, there's even a START msg that appears in red that is drawn in the lower 64 sprite bank.
No.11229 AWJ Developer Nov 5, 2014, 16:09	Sprites on the k007121 appear to be frame buffered (look at the contra or hcastle schematics, there's two 64K x 4bit DRAMs connected to each of the k007121s) so it's unlikely there are per-line sprite limits. More likely there's some way of sending two sprite lists to the chip in the same frame.

No.07377

Kale

Developer

Apr 13, 2011, 21:27

Text is drawn via sprites, a note on the source states that ...

- in combatsc (and more generally the 007121) the number of sprites can be
  increased from 0x40 to 0x80. There is a hack in konamiic.c to handle that,
  but it is wrong. If you don't pass the Iron Man stage, a few sprites are
  left dangling on the screen.(*not a bug, 64 sprites are the maximum)

That note is however wrong, since that generally a sprite limit is supposed to be per-line. I believe that this bug is too damn obvious (it happens on the very first level!) to not do any counter measure during developing of the game. Finally, there's even a START msg that appears in red that is drawn in the lower 64 sprite bank.

No.11229

AWJ

Developer

Nov 5, 2014, 16:09

Sprites on the k007121 appear to be frame buffered (look at the contra or hcastle schematics, there's two 64K x 4bit DRAMs connected to each of the k007121s) so it's unlikely there are per-line sprite limits. More likely there's some way of sending two sprite lists to the chip in the same frame.